AITA for refusing to let my friends use my house as their wedding venue after I learned that it would be an open bar?

My friends "Mike" and "Cassie" are getting married in October. I have a large house out in the country, and they thought it would be a neat idea to host the wedding at my place. I agreed initially, but then I learned that they planned on serving alcohol. The problem is that Mike and Cassie are alcoholics. I've had to drive Mike home on more than one occasion in which he could not drive himself. Cassie was a smoker and drinker before we all graduated college, and I've seen her drink multiple beers really quick as if she couldn't get enough. I don't want some sloppy drunk driving past my neighbors or down my country road. I grew up in that area, and I know that alcohol combined with a poor road quality is just an accident waiting to happen. Plus they will probably spill beers all over my carpet. So I texted Mike yesterday and said I'm backing out. <br><br>Mike and Cassie are pissed off with me. Cassie said that I'm overreacting and that I'm being a poor friend. Mike said that he doesn't drink as much as he used to but he will still have a beer or 2 at the wedding. He said that he will tell his friends not to drink and drive and to stop drinking once they think that they are too sloppy to drive. He offered to pay me a large sum of money but I still said no.